Rev. Billy Graham attends Bush book signing

Former U.S. President George W. Bush shares a hug with Billy Graham while signing copies of his new book "Decision Points" at the Billy Graham Library in Charlotte, North Carolina, Dec. 20, 2010.

It's fascinating to see the pastor to presidents make a rare public appearance.I suspect we won't see an evangelical preacher like him any time soon. As Wikipedia notes:

He did not completely ally himself with the religious right, saying that Jesus did not have a political party. He did not openly endorse political candidates, but he gave his support to some over the years.

He refused to join Jerry Falwell's Moral Majority in 1979, saying: "I'm for morality, but morality goes beyond sex to human freedom and social justice. We as clergy know so very little to speak with authority on the Panama Canal or superiority of armaments. Evangelists cannot be closely identified with any particular party or person. We have to stand in the middle in order to preach to all people, right and left. I haven't been faithful to my own advice in the past. I will be in the future."

Former President George W. Bush and First Lady Laura Bush signed copies of their books at the Billy Graham Library in Charlotte on Monday, and were greeted by the 92-year-old Reverend Graham himself. NBC's Brian Williams reports.